HD 8535

HD 8535
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Phoenix
Right ascension 01h 23m 37.23585s[1]
Declination –41° 16′ 11.2795″[1]
Apparent magnitude (V) 7.70[2]
Characteristics
Spectral type G0V[3]
Apparent magnitude (B) 8.22[4]
Apparent magnitude (J) 6.735[5]
Apparent magnitude (H) 6.449[5]
Apparent magnitude (K) 6.354[5]
B−V color index 0.553±0.009[2]
Astrometry
Radial velocity (Rv)+2.51±0.12[1] km/s
Proper motion (μ) RA: +57.795 mas/yr[1]
Dec.: −69.879 mas/yr[1]
Parallax (π)18.0657 ± 0.0181 mas[1]
Distance180.5 ± 0.2 ly
(55.35 ± 0.06 pc)
Absolute magnitude (MV)4.10[2]
Details[6]
Mass1.17±0.02 M☉
Radius1.18±0.02 R☉
Luminosity1.85±0.01 L☉
Surface gravity (log g)4.36±0.02 cgs
Temperature6,200±50 K
Metallicity [Fe/H]0.02 dex
Rotational velocity (v sin i)3.07[7] km/s
Age2.1±0.9 Gyr
Other designations
CD–41°359, GC 1693, HD 8535, HIP 6511, SAO 215484, PPM 305828[8]
Database references
SIMBADdata
Exoplanet Archivedata

HD 8535 is a star located 181 light-years (55 parsecs) away from the Sun in the southern constellation of Phoenix. It has a yellow hue and can be viewed using binoculars or a small telescope, having a low apparent visual magnitude of 7.70.[2] The star is drifting further away from the Sun with a radial velocity of +2.5 km/s.[1]

This is an ordinary G-type main-sequence star with a stellar classification of G0V.[3] The luminosity class of 'V' indicates the star is generating energy through core hydrogen fusion. It is about two[6] billion years old and is spinning slowly with a projected rotational velocity of 3 km/s.[7] The abundance of elements other than hydrogen and helium in the star – what astronomers term metallicity – is about the same as in the Sun. It has 17% more mass than the Sun and an 18% greater radius. The star is radiating 1.85 times the luminosity of the Sun from its photosphere at an effective temperature of 6,200 K.[6]

A survey in 2015 has ruled out the existence of any stellar companions at projected distances above 23 astronomical units.[9] However, in 2019 a white dwarf companion to this star was found.[10]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Høg2000 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Cutri2003 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Bonfanti2015 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference DelgadoMena2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Mugrauer, M.; Ginski, C. (12 May 2015). "High-contrast imaging search for stellar and substellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 450 (3): 3127–3136. Bibcode:2015MNRAS.450.3127M. doi:10.1093/mnras/stv771. hdl:1887/49340. Retrieved 19 June 2020.
  10. ^ Cite error: The named reference Mugrauer2019 was invoked but never defined (see the help page).